Write an expression using the variables b and c that could be used to find the perimeter of the quadrilateral
If b=11 and c=16 what is the perimeter of quadrilateral

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

How do i do this? i don’t understand

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?